Presolicitation NOTICE OF INTENT TO SOLE SOURCE: Validation and Calibration Services for a Government-owned Rees Scientific Environmental Monitoring-Alarm System. The Department of Health and Human Services, Department of, specifically the National Institutes of Health, National Cancer Institute, requires validation and calibration services for a Government-owned Rees Scientific Environmental Monitoring-Alarm System. This system is used by the Surgery Branch at the Center for Cancer Research to monitor and alert for environmental changes. The procurement will be processed under FAR Part 12 and made pursuant to the authority in FAR 13.106-1(b)(2). The place of performance is Bethesda, Maryland, United States. Interested parties may submit a capability statement, proposal, or quotation by July 29, 2024, to be considered by the agency. Contractors must be registered and have valid, current Entity Record in the System for Award Management (SAM) through SAM.gov.